| 用回归旋转组合设计确定欧美杨最适施肥量 |
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| 引用本文： | 王庆仁,于桂琴.用回归旋转组合设计确定欧美杨最适施肥量[J].陕西林业科技,1990(3):18-21. |
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| 作者姓名： | 王庆仁 于桂琴 |
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| 作者单位： | 山东省泰安市林科所，山东省泰安市林科所 |
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| 摘 要： | 用回归旋转组合设计,对沙兰杨与Ⅰ-214杨进行的最适施肥量试验研究表明:试验条件下两个无性系的最适施肥量分别为N=15.79、P_2O_5=9.28kg/亩;N=3.28、P_2O_5=4.68kg/亩。氮、磷最适配比分别为N∶P_2O_5等于1∶0.59及1∶1.43。
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| 关 键 词： | 欧美杨 施肥量 组合设计 杨树 施肥 |
DETERMINATION OF THE OPTIMUM AMOUNTS OF FERTILIZER APPLIED FOR. P. x EUR AMERICA BY USING THE COMBINATION DESIGN OF REGRESSION ROTATION |
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| Wang Qingren Yu Guiqin.DETERMINATION OF THE OPTIMUM AMOUNTS OF FERTILIZER APPLIED FOR. P. x EUR AMERICA BY USING THE COMBINATION DESIGN OF REGRESSION ROTATION[J].Shaanxi Forest Science and Technology,1990(3):18-21. |
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| Authors: | Wang Qingren Yu Guiqin |
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| Abstract: | Experimental research on the optimum amounts of fertilizer applied for P. x euramericana cv. 'I-214' and P. x euramericana cv. 'Sacrau 79' by using the combination design of regression rotation showed that the optimum amounts of fertilizer were N=15.79, P_2O_5=9.28 and N=3.28,P_2O_5 =4.68kgs per mum respectively. The corresponding optimum ratios of N to P_2O_5 were 1 to 0.59 and 1 to 1.43. |
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| Keywords: | Optimum amounts of fertilizer Rotation Design P xeuramerica |
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